3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo is_numeric("200"), "\n"; echo is_numeric ("20,0"), "\n"; echo is_numeric ("$200"), "\n"; echo is_numeric (".25e4");
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
1 1

preferences:
225.58 ms | 404 KiB | 255 Q